Reaction potential seems in part to be a function of the stimulus intensity involved. This "stimulus-intensity dynamism is a monotonic function, increasing at a decreasing rate, of the logarithm of stimulus intensity." Stimulus-intensity dynamism is reduced to a ratio based on the point of origin of the generalization gradient, then combined multiplicatively with this gradient. 5 quantitative corollaries are deduced on this basis, 4 of which agree well with empirical findings. (PsycINFO Database Record (c) 2012 APA, all rights reserved